server/container/guice/queue/memory/src/main/java/org/apache/james/modules/queue/memory/MemoryMailQueueModule.java

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package org.apache.james.modules.queue.memory;

import org.apache.james.queue.api.MailQueue;
import org.apache.james.queue.api.MailQueueFactory;
import org.apache.james.queue.api.ManageableMailQueue;
import org.apache.james.queue.memory.MemoryMailQueueFactory;

import com.google.inject.AbstractModule;
import com.google.inject.Provides;
import com.google.inject.Scopes;
import com.google.inject.Singleton;

public class MemoryMailQueueModule extends AbstractModule {

    @Override
    protected void configure() {
        bind(MemoryMailQueueFactory.class).in(Scopes.SINGLETON);
    }

    @Provides
    @Singleton
    public MailQueueFactory<? extends ManageableMailQueue> provideManageableMailQueueFactory(MemoryMailQueueFactory memoryMailQueueFactory) {
        return memoryMailQueueFactory;
    }

    @Provides
    @Singleton
    public MailQueueFactory<?> provideMailQueueFactory(MemoryMailQueueFactory memoryMailQueueFactory) {
        return memoryMailQueueFactory;
    }

    @Provides
    @Singleton
    public MailQueueFactory<? extends MailQueue> provideMailQueueFactoryGenerics(MemoryMailQueueFactory memoryMailQueueFactory) {
        return memoryMailQueueFactory;
    }
}